Tomoki Oku
22Patents
9h-index
19Co-inventors
72Inventor score
Filing activity: Nov 12, 1987 → Aug 27, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6013926A | Semiconductor device with refractory metal element | Electricity | 68 | Expired |
| US5675159A | Recessed gate field effect transistor | Electricity | 56 | Expired |
| US5812364A | Capacitor | Electricity | 34 | Expired |
| US5358885A | Method of manufacturing a field effect transistor with a T-shaped gate electrode and reduced capacitance | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5399896A | FET with a T-shaped gate of a particular structure | Electricity | 18 | Expired |
| US5300445A | Production method of an HEMT semiconductor device | Electricity | 16 | Expired |
| US5538910A | Method of making a narrow gate electrode for a field effect transistor | Electricity | 13 | Expired |
| US5498572A | Method of manufacturing semiconductor device | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5888859A | Method of fabricating semiconductor device | Electricity | 11 | Expired |
| US5387529A | Production method of a MESFET semiconductor device | Electricity | 9 | Expired |
| US8428275B2 | Wind noise reduction device | Electricity | 7 | Active |
| US5187112A | Method for producing a semiconductor device | Electricity | 7 | Expired |
| US5376812A | Semiconductor device | Electricity | 6 | Expired |
| US5726468A | Compound semiconductor bipolar transistor | Electricity | 4 | Expired |
| US8218033B2 | Sound corrector, sound recording device, sound reproducing device, and sound correcting method | Physics | 3 | Active |
| US6933250B2 | Process for manufacturing a semiconductor device | Electricity | 3 | Expired |
| US4851680A | Josephson junction type radiation energy analyzer | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7135416B2 | Method of manufacturing semiconductor device | Electricity | 2 | Expired |
| US5250453A | Production method of a semiconductor device | Electricity | 1 | Expired |
| US8050142B2 | Sound collection environment deciding device, sound processing device, electronic appliance, sound collection environment deciding method and sound processing method | Electricity | 1 | Active |
| US8401364B2 | Imaging device and playback device | Electricity | 1 | Active |
| US7704556B2 | Silicon nitride film forming method | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.